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![[Figure 10]](tol5017fig10mag.jpg)
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Figure 10
Off-axis holography with double WG interferometer. (a, b) Empty beam divided hologram. The double-slit-type fringes present in both acquisitions, with and without object, disappear when no object is present. In contrast, within the hull of the object hologram, fringes remain after the division of object and empty beam, since the phase shift introduced by the object interferes with the reference beam, shifting the fringes proportionally to the local object phase. (c) A line-cut along the white line in (a) through empty beam (black) and object image (cyan) directly shows the attenuation as well as the phase shift. When no object is present, the two signals are identical. In detector pixels receiving object signal the intensity is attenuated and the oscillations are shifted in phase. (d) CTF reconstruction of the hologram in (a), after blurring of projection and empty beam in order to remove the fringes. (e) Off-axis reconstruction based on back-propagation (Fuhse et al., 2006  ), showing the expected range of negative phases and stabilized low spatial frequencies. Scale bars: 1 µm. |
![[Figure 10]](tol5017fig10.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
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